DC
Dorothy Collins — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Dorothy Collins across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Dennis & Frank — first a daughter (b.~1918), then head of a 12-person household.
Age 22
b. ~1918
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Collins |
| Given Name | Dorothy F |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Medford |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Stenographer |
| Industry | Printing Office |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 900 |
| Highest Grade | H-4 |
| 1935 Residence | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Stenographer |
| Township / Ward | Somerville City |
| Est. Birth Year | ~1918 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Dorothy | Age | Birth yr |
|---|---|---|---|---|
| Guy Fisher | Other | — | 52 | ~1888 |
| Paul Collins | Son | — | 9 | ~1931 |
| Dorothy Collins | Daughter | — | 22 | ~1918 |
| Mary Fisher | Other | — | 60 | ~1880 |
| Belle Collins | Spouse | — | 47 | ~1893 |
| Frank Collins | Son | — | 13 | ~1927 |
| William Collins | Son | — | 18 | ~1922 |
| Frank Collins | Head | — | 55 | ~1885 |
| Robert Collins | Son | — | 15 | ~1925 |
| William Matheron | Other | — | 40 | ~1900 |
| Georgia Collins | Daughter | — | 22 | ~1918 |
| Carol Collins | Daughter | — | 6 | ~1934 |
Census Appearances
1920
Middlesex, Massachusetts
Daughter, age 1
Middlesex, Massachusetts · implied b. ~1919 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Collins |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Daughter, age 12
Middlesex, Massachusetts · implied b. ~1918 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Collins |
| Given Name | Dorothy F |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Daughter, age 22
Middlesex-County, Massachusetts · implied b. ~1918 — 12 household members
| Surname | Collins |
| Given Name | Dorothy F |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Medford |
| 1935 Residence (County) | Middlesex |
| Occupation | Stenographer |
| Industry | Printing Office |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 900 |
| Highest Grade | H-4 |
| 1935 Residence | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Dorothy Collins across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Dennis Collins (~0.92 confidence) and father Frank Collins (~0.92 confidence) and mother Belle Collins (~0.92 confidence) and mother Ethel Collins (~0.92 confidence) and mother Isabell Collins (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Dennis Collins
b. ~1890
Source father
● Household
· direct · ~0.92
Father
Frank Collins
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Belle Collins
b. ~1893
Source mother
● Household
· direct · ~0.92
Mother
Ethel Collins
b. ~1895
Source mother
● Household
· direct · ~0.92
Mother
Isabell Collins
b. ~1892
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Dorothy Collins
Daughter · 1940 · age 22 · b. ~1918 · Massachusetts
★ You are viewing this record
Sibling
William Collins
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frank Collins
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Collins
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Georgia Collins
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Collins
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carol Collins
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01703-00049)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frank Collins | 55 | Head | Printer | Massachusetts |
| 2 | Belle A Collins | 47 | Wife | — | Massachusetts |
| 3 | Dorothy F Collins THIS PERSON | 22 | Daughter | Stenographer | Massachusetts |
| 4 | Georgia F Collins | 22 | Daughter | Stenographer | Massachusetts |
| 5 | William H Collins | 18 | Son | — | Massachusetts |
| 6 | Robert M Collins | 15 | Son | — | Massachusetts |
| 7 | Frank A Collins | 13 | Son | — | Massachusetts |
| 8 | Paul E Collins | 9 | Son | — | Massachusetts |
| 9 | Carol A Collins | 6 | Daughter | — | Massachusetts |
| 10 | William Matheron | 40 | Brother-in-law | Accountant | Massachusetts |
| 11 | Guy Fisher | 52 | Brother-in-law | Brakeman | Maine |
| 12 | Mary L Fisher | 60 | Sister-in-law | — | Rhode Island |
| 13 | Mabel F Whittier | 75 | Head | 0 | Massachusetts |
| 14 | Katie Tarkiainen | 65 | Head | — | Germany |
| 15 | Henry A Stone | 70 | Head | Druggist | Massachusetts |
| 16 | Mabel W Stone | 67 | Wife | 0 | Massachusetts |
| 17 | Emma S Broadman | 55 | Head | 0 | Vermont |
| 18 | Anna O'Sullivan | 41 | Head | Servant | Eire |
| 19 | Charles E Parkhurst | 64 | Head | Dentist | Vermont |
| 20 | Helen A Parkhurst | 60 | Wife | 0 | Massachusetts |
| 21 | Louisa H Parkhurst | 62 | Sister | Music Teacher | Vermont |
| 22 | John B Hay | 62 | Head | Repair Man | Scotland |
| 23 | Mary G Hay | 52 | Wife | 0 | Scotland |
| 24 | Thomas Hay | 24 | Son | Page Boy | Scotland |
| 25 | Annie M Hay | 19 | Daughter | 0 | Scotland |
| 26 | Everett W Bray | 55 | Head | Mechanic | Massachusetts |
| 27 | Catherine E Bray | 54 | Wife | 0 | Massachusetts |
| 28 | James A Black | 53 | Head | 0 | Massachusetts |
| 29 | Black | None | — | — | — |
| 30 | Minnie H Bingham | 74 | Maid | 0 | Massachusetts |
| 31 | Helen F Kelleher | 45 | Head | Nurse | Eire |
| 32 | John L Kelleher | 42 | Brother | 0 | Massachusetts |
| 33 | Frank P Kelleher | 40 | Brother | 0 | Massachusetts |
| 34 | Arthur P Kelleher | 36 | Brother | Teacher | Massachusetts |
| 35 | Albert G Kelleher | 28 | Brother | Clerk | Massachusetts |
| 36 | Clifford T Richardson | 56 | Head | Engineer | Massachusetts |
| 37 | Ruth E Richardson | 37 | Wife | — | Ohio |
| 38 | Janet A Richardson | 23 | Daughter | Teacher | Massachusetts |
| 39 | Donald A Richardson | 21 | Son | 0 | Massachusetts |
| 40 | Lois A Richardson | 18 | Daughter | 0 | Massachusetts |
Related Census Records
Pedigree Summary
Dorothy + 6 siblings
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)